Advanced Materials & Tribology supplies Self-lubricating Split Double Flange Screw Conveyor Bushing. Advanced Materials & Tribology offers a wide range of Oil-less self-lubricated Bearings and Plates, Self Lubricating Bushes and Pump Bearings. Advanced Materials & Tribology is an ISO accredited company. The Self-lubricating Split Double Flange Screw Conveyor Bushing contains no oil and provides long service life in high temperature applications. The Screw Conveyor Bushing can survive harsh environments and is suitable in screw or spiral conveyors or feeders for moving a large variety of bulk materials.